671342616 has 96 divisors (see below), whose sum is σ = 2082506400. Its totient is φ = 191393280.

The previous prime is 671342593. The next prime is 671342621. The reversal of 671342616 is 616243176.

It is a happy number.

671342616 is a `hidden beast` number, since 6 + 7 + 1 + 34 + 2 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285606 + ... + 287946.

It is an arithmetic number, because the mean of its divisors is an integer number (21692775).

Almost surely, 2^671342616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671342616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041253200).

671342616 is an abundant number, since it is smaller than the sum of its proper divisors (1411163784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671342616 is a wasteful number, since it uses less digits than its factorization.

671342616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929 (or 2922 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 671342616 is about 25910.2801219902. The cubic root of 671342616 is about 875.6181171519.

The spelling of 671342616 in words is "six hundred seventy-one million, three hundred forty-two thousand, six hundred sixteen".